Look who’s back! Chuku Modu, an original cast member of "The Good Doctor," is making a comeback as Dr. Jared Kalu after a five-year hiatus. He will be recurring on the sixth season of the ABC medical drama and will first appear in the March 6 episode titled "Old Friends." In this episode, Dr. Kalu will make a surprising return to St. Bonaventure Hospital in San Jose with his billionaire patient.
According to a source, Chuku Modu will be appearing in a total of seven episodes for the remainder of season 6 of "The Good Doctor." Co-showrunner and executive producer, Liz Friedman, expressed excitement for Modu's return, saying that the team is looking forward to exploring what Dr. Kalu has been up to since leaving St. Bonaventure. Stay tuned to answer why Chuku Modu returns to The Good Doctor.

#1. Why Chuku Modu Returns to The Good Doctor as Dr. Jared Kalu Role?

Source: Deadline

Chuku Modu's comeback as Dr. Jared Kalu in season 6 of "The Good Doctor" has not been revealed. Modu, on the other hand, is not the only character to return after a brief hiatus. Dr. Browne, portrayed by Antonia Thomas, and Jessica Preston, played by Beau Garrett, are two more key original characters who have departed the program. Preston departed after season one, while Browne left after four seasons, although they parted ways amicably. Garrett made a surprise appearance in season 4, and Thomas featured in two episodes of season 5.
Modu appears to be joining a pattern observed in The Good Doctor of reintegrating its initial cast members who had previously departed from the show. The only difference is that he gets an extended return. This strategy of bringing back past actors can effectively generate interest in the show, which has evolved considerably since its first season and continually expands its cast. However, the decision to reintroduce these characters also serves as a tribute to the original stars who contributed to the show's success and reinforces the idea that their storylines are still relevant and ongoing within the broader universe of The Good Doctor.

Source: ScreenSpy

Modu's return is sure to pique people's interest, especially since Kalu did not depart St. Bonaventure on good terms. Season 6 might aim to provide a more satisfying conclusion to his story and demonstrate that despite a few early blunders, he attained success in his profession. Modu's reappearance could possibly be related to the fact that The Good Doctor's backdoor pilot for a potential spinoff, The Good Lawyer, is approaching. Modu will return in the episode directly before the backdoor pilot, likely to help in garnering an audience for it.
Chuku Modu's return to "The Good Doctor" as Dr. Jared Kalu appears to be part of a trend of reintroducing former cast members to the show. Modu's lengthy return, on the other hand, distinguishes him from the other performers. Bringing back previous cast members can increase interest in the show, which has evolved and expanded greatly since its initial season. Furthermore, revisiting these characters pays homage to the original actors who contributed to the show's popularity while also reinforcing the concept that their tales are still significant and ongoing inside the larger universe of "The Good Doctor."
Also: Why The Good Doctor Season 6 Episode 14 Delayed Airing (February 20, 2023)

#2. Dr. Jared Kalu on The Good Doctor Season 1

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Modu's character, Dr. Kalu, played an important role in the first season of The Good Doctor, especially in supporting and helping Shaun navigate the hospital environment. However, his character faced significant challenges and ultimately left the hospital for Denver. It will be interesting to see how his character's story develops in his seven-episode return to the show.
It's encouraging to witness Modu's success outside of The Good Doctor. His roles on The 100 and Captain Marvel demonstrated his versatility as an actor, and his recent work on The Peripheral and The Origin demonstrate that he is still in great demand. It's hardly surprising that the showrunners would want to bring back a superb actor like Modu to reprise his role as Dr. Kalu and contribute to The Good Doctor's ongoing plot.